Kato Kaelin, who lived in a guest house on O.J. Simpson's property at the time of the killings, was a witness during the 1995 trial Gilbert Carrasquillo/Getty Images; KMazur/WireImage; Images ...

Kato Kaelin, who lived in a guest house on O.J. Simpson's property at the time of the killings, was a witness during the 1995 trial Kato Kaelin might forever be remembered for his role as a witnes ...

The prosecution was granted permission to treat Brian "Kato" Kaelin as a hostile witness. The decision allowed Deputy District Attorney Marcia Clark to more aggressively question her own witness.